The MRH 46-140 single-shaft equipped shredder is particularly suitable to shred high quantities of industrial wastes. The heavy structure makes the machine suitable to realize a heavy use.

A hydraulic control unit allows driving the pusher drawer. Thus, the product to be grinded is pushed towards a tools-holder rotor causing its crushing.

Thanks to a screen it is possible to select the final dimension of the shredder material.

Main features:

  • Power installed on the rotor: 75 kW (100 HP)
  • Power of the hydraulic control unit: 5,5 kW (HP 7)
  • Drive: by belts
  • Number of rotors: 1
  • Rotor diameter: 400 mm
  • Rotor length: 1400 mm
  • Number of reversible tools: 78
  • N° of usable tools sides: 4
  • Average number of rotor revolutions per min: 83
  • Weight: 7.000 kg
  • Production: 3,5-5 t/h.
  • Safety devices: emergency stop, drawer reversal system
  • Manufactured according to EC standards.

Accessories on request:

  • Loading belts;
  • Interchangeable hopper;
  • Interchangeable screen;
  • Shredded material packaging system.


Characteristics of the shredder:

  • Strong welded steel framework;
  • Support for barrel roller bearings with sealing system against dust and liquids;
  • High thickness rotor with diameter of 400 mm and length of 1400 mm. It is equipped with 78 tools-holder plates and 68 high alloyed anti-wear tools usable 4 times;
  • No. 6 adjustable counter-blades (upper and lower)made in very alloyed anti-wear steel.;
  • Pusher drawer with hydraulic driving with 850 mm of usable run equipped with no 2 pushing cylinders;
  • Hydraulic unit fitted with gear pump with oil cooling radiator;
  • Pulleys and belts drive system to avoid damaging mechanical due to rotor vibrations;
  • Hydraulic coupling between motor and reduction group;
  • 1 multi-voltage, multi-frequency motor of primary national house of 75 kW with PREMIUM efficiency class (IE3) and nr. 1 5.5 kW motor for hydraulic unit;
  • 1400X1300 mm cutting chamber;
  • Welded sheet metal hopper for top loading;
  • Interchangeable screen establishing the size of the shredded material.

Characteristics of control system:

  • Electric switchboard complying with EEC standards, equipped with torque limiting device which inverts the direction of the pusher drawer if the work load of the machine exceeds the set value;
  • S7-1200 SIEMENS PLC to control all the plant peripheral units;
  • SIMATIC SIEMENS touch screen to adjust all the parameters of the machine;
  • Software prepared to control the loading system, the grinder and the suction plant;
  • Emergency control functions for stopping the system;
  • ISVE MAINTENACE PROGRAM: it signals the ordinary maintenance interventions at their expiry date;
  • PREDISPOSITION FOR REMOTE-ASSISTANCE AND “SAFETY SERVER CONNECTION ISVE” (real-time supervision of the parameters from server ISVE);
  • Made to CE standards.


  • ISVE Server Connect: additional internet connection module with automatic monitoring service on the ISVE server of the correct operation of the grinding system.
  • Interchangeable screen establishing the size of the shredded material (diam. 14-16-20-25-30-35 mm).
  • Drawer connectable to a suction system.
  • Rotor cooling system.
  • Pusher drawer with stroke increased to 1300 mm.

Specific accessories for grinding electric cables:

  • Rotor protection tile (prevents materials in the hank from overloading the rotor).
  • Shredder stop software in case of overloading of separation system / refiner mill.



Your needs are our challenge

I.S.V.E. designs and manufactures shredding equipments such as single-shaft shredders, double-shaft shredders, four-shaft shredders, combined systems and granulators customised to meet customer requirements.

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